Can anyone help me?

I started a new blog Craftallday.blogspot.co.uk last month and have 71 followers. However someone tried to join this morning and said that the followers bar with all my followers pictures has gone!

On my blog it now says

We're sorry...
This gadget is configured incorrectly. Webmaster hint: Please ensure that "Friend Connect Settings - Home URL" matches the URL of this site.

I have tried to connect to Google Friend but just don't know what to do. As you can see from this blog I still have all my followers showing and people can still add their names to my followers list.

Any help will be very much appreciated

hugs Sarah x